Capt. Rich Pegau "Rainmaker Charters", hes out of Port of Burns Indiana (you are looking straight across the lake at Chicago) . He has been chartering for something like close to 40 years, his deckhand has been on a salmon boat as long or longer. Went with them this last May and had an absolute blast and caught fish in spite of horrible hurricame like weather. Just an FYI if you are even the least bit prone to seasickness take some dramnine, lake michigan gets wave action as bad as any ocean you will ever be on. Take a big cooler, fresh never frozen coho and king salmon on the grill is one fine meal.
Google "rainmaker charters, lake michigan". You might want to hit him up pretty quick, he fills up fast and early. If hes booked he can reccomend one of his top notch buddies as well.